Wheel adjustment for plows.



Q E. M. EEYLMAN.

WHEEL ADJUSTMENT EOE PLows.

' APPLIOATION FILED EUR19, 1911. 1,093,990. Patented Apr. 21, 191L 2 SHEETS-SHBBT 1.

munnnlulnllllllllllllllllllll B. M. HEYLMAM WHEEL ADJUSTMENT FOR PLOWS. APPLIOATIOK FILED AUG. 19, 1911.

1 ,093,990, i Patented Apr. 21, 1914 2 SHEETS-SHEET 2.

@ y MQRWWM Wzaz COLUMBIA PLANonRAPH Co..wASHINu1`oN,-D. c.

STATES PATENT OFFICE.

EDWARD M. HEYLMAN, 0F ROCK ISLAND, ILLINOIS, ASSIGNOR. TO ROCK ISLAND PLOW COMPANY, OF ROCK ISLAND, ILLINOIS, A CORPORATION OF ILLINOIS.

WHEEL ADJUSTMENT FOR FLOWS.

Specification of Letters Patent.

Patented Apr. 21, 1914;.

Application filed August 19, 1911. Serial No. 644,986.

To all whom t may concern Be it known that I, EDWARD M. HEYLMAN, a citizen of the United States of America, and resident of Rock Island, Rock Island county, Illinois, have invented a certain new and useful Improvement in Wheel Adjustment for Plows, of which the following is a specification.

"vIy invention relates to wheel plows, and

more particularly t-o the new improved man-p ner of adjusting the land wheel with respectto the frame whereby the frame can be raised or lowered.

In prior constructions, in which means are provided for raising and lowering the frame in this manner, it was necessary to employ a spring or similar device for counteracting the weight of the frame and parts carried thereby in order to facilitate the raising and lowering of the frame, and it was likewise necessary to `employ a second spring to act in the nature of a percussion spring or buffer to take up any slight ino-vement or vibration of the land wheel, due to striking obstructions in the operation of the plow. By my construction, however, I obviate the necessity of employing` two springs, for I perform both of these functions with a single spring, whereby I am enabled to greatly simplify the construction of the plow and correspondingly reduce the cost of the same. Furthermore, I eliminate one of these springs without in any way losing any of the benefits heretofore derived from the two springs. These and other objects of my invention will be more clearly understood by reference to the accompanying drawings, in which similar reference characters refer to similar parts, and in which,

Figure 1 is a perspective view of a wheel plow embodying the features of my invention. Fig. 2 is a detail side elevation of the adjusting lever and its cooperating parts. Fig. 3 is an end elevation of the same.

I have illustrated my invention in connection with a wheel plow comprising the frame 4 within which are mounted the main beams 5 for supporting the plow bodies 6 in the well known manner. Mounted upon the forward end of this frame is the standard 7 upon which is mounted the front furrow wheel 8, and on the upper end of which standard is connected the tongue 9. The

adjusting lever 10 is provided for raising and lowering the front furrow wheel 8. Upon the rear portion of the frame is mounted the standard 11 for supporting the rear furrow wheel 12. rIhe front and rear furrow wheels are connected together bl means of the connecting ro-d 13. All of these parts are of any well known construction, and I do not wish to limit myself to any exact type of plow, and it is accordingly not thought necessary to describe these parts further in detail.

The land wheel 1-lis mounted upon the axle 15 which is pivotally supported upon the frame in the bearings 16, 17. Mounted upon the shaft 15 .and keyed thereto is a casting 18, which casting is provided with an upwardly extending arm 19 provided with a pair of forwardly extending lips 20. This'casting is likewise provided. with a downwardly extending portion 21 to which is connected the coil spring 22j which is connected to bolt 23 adjustably connected to the forward part of the frame 1. Situated between the bearing 17 and this casting 1S and loosely mounted upon the shaft 15, there is an adjusting lever 24. rIhis adjusting lever is pivotally mounted upon the shaft 15 and provided with an upwardly eX- tending operating handle 25 which passes between thelips 20--20 on the casting 19, which lips are suiiciently far apart so as to allow a slight play of the operating handle between these two lips. Mounted upon this operating handle is a spring finger 26 of the usual type, engaging with the rack 27, which rack is carried by the arms 28 eX- tending upwardly from the bearing 17. A brace 29 connected to the forward portion of the frame and extending to the bearing 17 is provided for rigidly connecting this bearing to the main frame.

By this construction it will be seen that when the hand lever 25 is locked in any position by means of the spring finger engaging with one of the notches on the rack 27, the shaft 15 on which the land wheel is mounted is permitted a slight oscillating movement against the compression or ten-V sion of the spring 22, due to the slight movement which is permitted between the casting 19, which is rigid with the shaft, and the hand lever 25, which is rigid with the frame at this time. As before pointed out, this movement is brought about by the clearance between the lips 20 and the sides of the operating handle 25. At this time the spring 22 acts as a concussion spring or buer, and ab- *the usual manner, and the operating lever 25 pressed downwardly, at which time this lever bears against one of the lips 20 in the casting 19, thus rotating the shaft 15 in the direction-necessary to raise the frame. rIhis i motion is assisted by means of the tension of the spring 22, which is so positioned and adjusted that it tends to counteract the weight of the frame and parts carried thereby, thus greatly assisting in the raising of the frame. In lowering the frame the operation is similar, except that in this instance the operating handle bears against the opposite lip 20, the spring 22 working against this movement and tending to counterbalance the weight of the frame and other parts to prevent the frame from being lowered too quickly.

Itwill thus be seen that I have devised a very simple and eliicient means for lowering and raising the frame, and have combined in a single spring that which it has heretofore required two springs to accomplish.

.lVhile I have shown one particular embodiment of my invention, it will be understood that I do not wish to limit myself to the exact construction shown and described.

What I claim as my invention is:

1. In a wheel plow, a frame, a land-side wheel, an axle upon which said wheel is mounted, a shock absorbing spring connectedto said axle, a lever loosely mounted upon said shaft for raising and lowering said frame with respect to said wheel, and means controlled by said spring for assisting said raising operation.

2. In a wheel plow, a fame, a land-side wheel, an axle upon which said wheel is mounted, a casting keyed to said axle, a shock absorbing spring connected to said casting, and an operating lever loosely mounted upon said axle, and adapted to engage said casting for raising and lowering the frame with respect to said wheel.

3. In a wheel plow, a frame, a land-side wheel, an axle upon which said wheel is mounted, a casting keyed to said shaft, a shock absorbing spring connected to said casting, a pair of lips on said casting, an operating lever loosely mounted upon said axle and extending between said lips, means for locking said lever in any desired position, and means whereby said casting is permitted a limited rotation independent of said operating lever.

4. In a wheel plow, a -frame, a land-side wheel, an axle for said wheel mounted in said frame, a casting keyed to said axle, a shock absorbing spring connected to said casting, an arc-shaped rack rigidly mounted upon said frame, an operating lever loosely mounted upon said axle and provided with a spring linger adapted to engage said rack to lock said lever in any desired position, and means for causing said lever to engage said casting to oscillate said shaft in order to raise or lower said frame in respect to said wheel.

Signed by me at Rock Island Illinois this 31st day of July 1911.

EDWARD M. HEYLMAN.

Witnesses E. C. DEAN, I-I. MINK.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

